La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Seasonal Cycle of Phytoplankton Community Composition in the Coastal Upwelling System Off Central Oregon in 2009
Auteurs :	Xiuning Du, Auteur ; William T. Peterson, Auteur
Type de document :	Article
Dans :	Estuaries and Coasts (37(2) MAR 2014)
Article en page(s) :	299-311
Résumé :	Coastal upwelling in the northern California Current varies seasonally, with downwelling in winter and upwelling in summer, resulting in pronounced variability in hydrography, nutrients, phytoplankton biomass, and species composition. Winter was characterized by moderate concentrations of nitrate and silicate (averages of 10 and 18 mu M, respectively) and low concentrations of chlorophyll a (Chl a). During the upwelling season, concentrations of the same nutrients ranged from near 0 mu M to approximately 27 and 43 mu M and Chl a 0.5

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